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1、香丽高速公路第7合同段工程项目 冲孔灌注桩施工方案 香丽高速公路第7合同段上补洛大桥冲孔桩基施工方案编 制 人：_审 核 人：_批 准 人：_实施日期：_单位名称：云南建工第四建设有限公司 香丽高速第7合同段一工段项目经理部 编制日期：2015.9.23目录第一章、编制依据及原则4编制依据4编制原则4第二章、工程概况52.1、设计概况52.2、施工自然、地质条件52.2.1、地质条件62.2.2、气候、水文8第三章、冲孔灌注桩施工工艺73.1、施工准备83.1.1现场准备83.1.2、机械准备83.1.3、劳动力计划93.1.4、材料准备93.1.4、进度计划11 3.2、施工工艺流程图123
2、.3、冲孔桩基施工工艺及工序133.3.1、桩基测量定位133.3.2、泥浆池和沉淀池分布原则133.3.3、埋设护筒133.3.4、成孔施工方法133.3.5、清孔153.3.6、测沉渣153.3.7、安放钢筋笼153.3.8、下灌注导管173.3.9、水下砼灌注173.3.9、施工发生的异常情况和处理防治措施19第四章、质量、安全、文明施工204.1、质量保证措施204.1.1、质量检验程序图204.1.2、工程质量控制指标、检验频率及检验办法214.1.3、分项工程报验程序214.2、材料质量保证措施214.3、桩基主要施工危险源及应对措施224.4、冲孔灌注桩施工中相关机械、人员安全操
3、作规程254.4.1、桩机安全操作规程254.4.2、装载机安全操作规范264.4.3、钢筋弯曲机操作规范274.4.4、电气焊工及设备安全操作规范284.4.5、电焊机安全操作规范294.4.6、氧气乙炔安全使用规程304.4.7、钢筋笼制作及吊装安全操作规程324.4.8、混凝土灌注过程安全操作规程344.5、施工用电安全354.6 、雨季施工技术措施364.6.1、雨季施工部署364.6.2、雨季施工技术措施364.6.3、雨季施工作业安全用电防护措施37第一章 编制依据及原则1.1 编制依据（1）、香丽高速公路第7标段两阶段施工图设计；（2）、我国现行公路、桥涵工程施工规范及质量检验评
4、定标准； 、公路桥涵施工技术规范JTJ041-2000； 、公路施工手册桥涵（上册）；、公路工程集料试验规程-JTJ085-2000； 、公路工程质量检验评定标准-JTJ071-98；、钢筋焊接及验收规范-JTJ18-96；、建筑桩基技术规范（JGJ 94-2008） 、公路工程技术标准（JTG B01-2014） 、云南省高速公路施工标准化实施要点第1册工地建设 、云南省高速公路施工标准化实施要点第2册工程施工（3）、现场实际情况和通过调查所掌握的有关资料信息。 （4）、我公司的综合实力、机械设备能力、技术力量和类似工程建设的经验。1.2 编制原则（1）、严格遵循招标、投标文件的内容及设计文
5、件要求，确定本工程的创优规划，并据此来编制施工组织设计。 （2）、仔细考察工程实地，认真研究招标、投标文件、设计图纸和有关规定，充分考虑本桥的特点、场地、交通、水文、运输、料源、民情、水电供应、气候等实际情况的基础上编制。Opinions and suggestions on the partys mass line educational practiceAccording to the central and provincial, municipal unified deployment, according to municipal Party committee about carr
6、ying out the partys mass line educational practice activity in the citys implementation opinions, the spirit of the partys mass line educational practice activities from 20* in January to 99 months, carried out at all levels of departments and directly affiliated institutions and grass-roots party o
7、rganizations. According to my actual County, the county to carry out the education practice put forward the following implementation opinions.First, the overall requirementsCounty county education practice to the eighteen Party of eight, the spirit of the the third Plenary Session of the 18th CPC Ce
8、ntral Committee as the guidance, conscientiously implement the spirit of general secretary Xi Jinping book series of important speech, earnestly implement the Central Committee really, opinions and advice , party implementing the guiding ideology of opinions to determine the objectives and requireme
9、nts, step method, in accordance with the look in the mirror, dress up, wash bath, cure treatment, the general requirements of for the people pragmatic honest people as the theme, in carrying forward the spirit of Zhuanglang Zhuang, improve their work style, service to the masses of the people, the f
10、oundation of consolidating grassroots, promote transformation across efforts, to further implement the central eight regulations and The opposition party and government austerity waste regulations , double section provincial regulations, municipal provisions of the twelve plan and the implementation
11、 measures for on improving the work style of close ties with the masses law, highlight style building, carry out the whole wind spirit, resolutely oppose formalism, bureaucracy, hedonism and wasteful extravagance to solve the problems, Party members and cadres of the style and the masses of people s
12、trong, the Ministry of Party members and cadres to further improve their thinking and understanding, to further change the style of the wind, the masses to close, honest and pragmatic people honest image to further establish the foundation to further reinforce the basic level. Style of the building
13、of the new results to promote the construction of a powerful force of the county and the ecological culture of the county and county construction.In educational practice activities of the unit is mainly: the county and below county departments under the organs, enterprises and institutions directly
14、under the township, street, and community, village, non-public economic organizations, social organizations and other grass-roots organizations. Agencies and branches, each single unit, follow the rules on internal institutions. Educational practice with step by step.To adhere to the county leadersh
15、ip, leadership and leading cadres to focus on outstanding catch to directly contact the service of the masses of law supervision departments and window units, service industry, educational practice, pay attention to grasp the heavy towns, streets and villages, community education activities and the
16、masses of grassroots groups in close contact to strengthen, and the majority of Party members, cadres and the mass line line Marx doctrine view of the masses and the partys education.Always speak seriously as a basic attitude, adhere to positive education, to carry out criticism and self criticism g
17、roup, adhere to the pragmatic, more emphasis on leadership, pay more attention to the layers of the demonstration, more focus on the four winds, solve the problem, pay more attention to open the door, the participation of the masses, pay more attention to the classification guidance. Orderly, pay mo
18、re attention to the cooperation and cohesion driven, more strict requirements on injection, really supervision practice, ensure education practice is not empty is not empty is not partial, not as a mere formality.Two, the key point of the taskThe main task of the countys education practice is to sei
19、ze against four wind this focus on centralized solve outstanding problems asked County, township leadership and leading cadres of the four winds, the disadvantages of the style, scale behavior to a large scale investigation, overhaul, cleaning greatly. At the same time, respond to the concerns of th
20、e masses, safeguard the interests of the masses, pay attention to solve practical problems, solve the people around the unwholesome tendencies especially on eat, take the card, Yong lazy luxury, extravagance and waste fees, privileges and other issues, timely and effective, without any discount to s
21、olve, to improve the style of real implementation of the requirements of real to the grassroots, real let group Benefit the public.(a) focus on solving the four winds outstanding issuesThe central and provincial requirements, the county leadership and leading cadres of key performance concept is not
22、 correct, do not dare to play, to engage in image project, political project, a leadership guide, a set of ideas, orders and prohibitions, and a policy, there are countermeasures county. The units directly under the heavy focus on solving Yung lazy drag, buck passing skin, work is not implemented, t
23、he service is not active. The dynamic problem of law enforcement and supervision departments and window units, service industry mainly solve the door hard, ugly face, something difficult, and arbitrary charges, fines, levies, and breach of privilege, chinakayao, not the problem of law. The township,
24、 street The collar of leading bodies and leading cadres to solve key does nottheir own conditions to develop the correct road, the maximum to avoid investment risk, gain profit.(three) vigorously promote the brand. To establish brand awareness, awareness of the use of brand, brand value, brand acqui
25、sition performance, enhance the competitive strength. Concentrated manpower, careful planning, packaging and publicity of a number of unique, market influence and coverage of the brand, the implementation of key breakthroughs, to enhance the competitive strength, walking business road the competitio
26、n of alienation and characteristics, the pursuit of stability and development of the market.(four) to promote the integration of resources. To further broaden their horizons, effective integration of resources within the group, the city resources, other industries and regional resources, mutual trus
27、t, mutual benefit, seeking win-win principle, in the framework of national policies and regulations, strict inspection and argumentation, legal consultation, examination and approval procedures, strict regulation of economic activities, attract injection the social investment to the industry group,
28、to achieve leveraging the development, ensure that the value of state-owned assets.(five) to strengthen the construction management personnel. Strengthen the management of education and training of cadres and workers of the existing business, firmly establish the concept of the market, enhance the s
29、ense of crisis to adapt to market competition, the sense of urgency, improve the ability to respond to market competition, improve management and operation of the market. At the same time, according to the need of industrial development, vigorously the introduction of high-quality management managem
30、ent personnel, and strive to build a high-quality professional management team, hard work, and promote the entire workforce knowledge structure, age structure, structure optimization and upgrading ability, enhance core competitiveness, adapt to the need of market competition.(six) seriously study th
31、e policy for policy. Serious research about social support the development of cultural undertakings in the country and the XX policy, especially the policy of industrial development, financial investment policy, financial policy and tax policy, and actively seek policy, projects and funds, enterpris
32、e and industry group mission to promote leapfrog development.云南建工第四建设有限公司 37 / 38GUANGXI ROAD & BRIDGE CORP第二章 工程概况1、工程概况上补落大桥（K68+010）位于香格里拉至丽江高速公路SJ1合同段，设计为双向四车道左右分离式桥梁，桥面宽度为12m，设计速度80Km/h，汽车荷载标准：公路一级，地震动峰值加速度：0.3g，地震基本烈度度：8度。本桥为跨越山谷而设，最高主墩108m，主跨为连续刚构，是本合同段的控制性工程之一。大桥左幅桥梁全长429m，起点桩号：K67+796，终点桩号：
33、K68+225，桥跨布置为：（229）m连续T梁+（83+150+83）m连续刚构+（225.8）m连续T梁。右幅桥梁全长472m，起点桩号：K67+759，终点桩号：68+231，桥跨布置为：（330）m连续T梁+（83+150+83）m连续刚构+（230）m。上补洛大各桥墩及左幅丽江台下部基础设计为孔桩基础，桩基按摩擦桩设计。主桥墩设计桩基础为群桩基础，地形位置较平整，桩长分42m、44m两种，引桥位于两侧山谷坡上，地形较陡，设计桩长较短，分别为13m、15m、19m、21m、22m，由于受地形限制及结合桩长情况，主墩桩基较深，位于河坝渗水丰富，采用冲孔桩，其它桩基较短，位于山坡地形，适合
34、采用人工挖孔桩。2、施工自然、地质条件2.1自然条件工区内属受季风影响的大陆性高原气候，气候特征表现为干湿季节分明，垂直变化显著，山区气温较低，金沙江河谷两岸较炎热；年、日气温变化均大，年内最高温度在金沙江河谷地区，高达30(6月)以上，高山地区最低温度为-30（12月），并发育现代山岳冰川；根据气候的垂直差异，可分为高山寒带与山地温带、河谷亚热带三个垂直气候带，海拔20002500米的山地温带年平均气温为12.913.5，降雨量894.6927.4毫米，蒸发量2177.12399.9毫米，相对湿度63.669.3%；2500米以上的高山寒带11月次年5月为雪季，气温一般为-12-25，79月
35、为雨季，平均降雨量为617.6毫米，49月间时有冰雹袭击，气候较恶劣；2000米以下的河谷亚热带气候炎热，年平均气温18，降雨量较少，一般700毫米以下。2.2地质构造桥位地处山地斜坡中下部，属构造侵蚀、溶蚀中山地貌区，地形相对较陡，植被茂密，桥位处地质作用以流水冲蚀、重力、风化作用为主。综合地质调绘、物探及钻探资料，场地岩土构成自上而下分述如下。1）、覆盖层场区地表覆盖层主要为第四系冲积层块石土、第四系残坡积块石土、第四系残坡积碎石土，现分别叙述如下：第四系冲积层块石土：灰黄色、灰褐色，稍湿，中密，块石成分以板岩为主，由碎石和粉质黏土充填。承载力基本容许值550kpa，摩阻力标准值180kp
36、a;第四系残坡积块石土:浅灰绿色，湿，密实，块石成分以玄武岩、板岩为主，由碎石圆砾充填，承载力基本容许值650kpa,摩阻力标准值200kpa;第四系残坡积碎石土:灰黄色、黄褐色，稍密，碎石以板岩为主，由粉质黏土及角砾充填。承载力基本容许值350kpa,摩阻力标准值120kpa；第四系残坡积碎石土：灰黄色、黄褐色，中密，碎石以板岩为主，由粉质黏土及角砾充填。承载力基本容许值450kpa，摩阻力标准值160kpa;2）、基岩场区下伏基岩按岩体节理裂隙发育及风化程度分为三叠系上统、强风化板岩、三叠系上统中风化板岩。 三叠系上统、强风化板岩：灰褐色，强风化，泥质胶结，变余结构，板状构造，节理裂隙发育
37、，多呈碎石状，承载力基本容许值500kpa，摩阻力标准值140kpa。 三叠系上统中风化板岩:灰褐色，中风化，泥质胶结，变余结构，板状构造，薄中层状，多呈碎石状。承载力基本容许值700kpa，摩阻力标准值160kpa。 3、施工交通、用水、用电 3.1、施工交通 原有村公路可直接到达施工现场，可满足材料、设备运送，交通较为方便。施工场地内沿线路走向修筑施工便道通至每个墩台，便道过河在河道上搭设贝雷桥。 3.2、工程用水、用电 3.2.1、工程用水 在施工现场有小河从所设计桥下通过，雪山融水，常年不断，河水清澈干净，可保证施工现场用水，施工用水可考虑在河道边修筑施工用水水池。 3.2.2、施工用
38、电 长远施工用电架设施工动力专用输电线路进入施工现场；由于供电线路还没有开始架设，现在施工在即，为满足施工用电需要，先前桩基施工采用柴油发电机发电，根据12台冲孔机即配套设备、钢筋笼加工等计算用电量，需配备2台500KW的柴油发电机供急用以及以后施工备用。第三章 冲孔灌注桩施工工艺3.1 施工准备3.1.1施工准备1）、调查现场及周边地区，对设计提供的地质、水文、气象资料进行复核，复核施工图纸的桩位、高程及桥梁跨径、桥台位置与地形是否一致。2）、所需用机械设备及施工人员、辅助人员全部到位，机械设备性能良好，能满足施工需要。3）、根据设计要求结合实际情况，编制冲孔灌注桩单项施工组织设计，向施工技
39、术人员进行一级技术交底及安全交底，向班组和民工个人进行详细的二、三级技术、安全、操作交底。确保施工过程中的质量及人身安全。4）、平面高程测量，由测量人员根据设计图纸放样定位确定各孔桩位置及场地平整高度。 5）、钻孔场地进行杂物清除、换除软土、平整压实，周围设置排水措施。3.1.2机械设备配备序号机械设备名称规格型号单位数量总功率（KW）1冲孔灌注桩桩机台122挖掘机PC210台1117 KW3钢筋切断机台14电焊机台25气割设备套16砼搅拌机台17发电机台2500KW8电焊机500A台53.1.3、劳动力组织序号名 称人数工 作 范 围1桩机组长4桩机操作2桩机技术工2桩机行走、定位3电焊工2
40、钢筋焊接4机械修理工1机械保养和维修5砼工8砼拌制及浇灌6钢筋工6钢筋笼加工安装7电工1施工用电线路搭设和连接8测量工1放轴线和桩位9工长1现场指挥、生产计划安排合计283.1.4、材料准备序号名称型号单位数量备注1钢筋28t602钢筋16t33钢筋10t104混凝土C30m3500商供3.1.5施工进度计划 上补洛大桥主墩（左幅3、4号墩，右幅4、5号墩）地势平坦且靠近河道，地下渗水丰富，设计桩长42m、44m两种，适宜机械成孔。全桥共计冲孔桩基45根，合计1908延长米，桩径200cm。根据总工期安排需要，每个墩按排3台冲孔桩机，12台冲孔桩基同时作业。工期按排如下：施工准备时间：2015
41、.11.012015.11.15左幅3#墩19号桩基施工时间: 2015.11.202016.02.10左幅4#墩112号桩基施工时间: 2015.11.162016.02.10右幅4#墩112号桩基施工时间: 2015.11.162016.02.10右幅5#墩112号桩基施工时间: 2015.11.162016.02.103.2、施工管理人员组织3.2.1、组织机构设置根据组织机构设置的目的和原则，结合我公司的有关规定，充分考虑本工程的实际情况，结合类似工程的施工经验，按照现代项目法施工原则组建“云南建工第四建设有限公司香丽高速第7合同段一工段项目经理部”。选聘技术水平高、施工管理经验丰富的
42、人员组成经理部决策层和管理层，负责本合同工程的实施；从公司抽调具有或类似公路施工和管理的工程技术人员和技术工人，按专业组建施工队伍承担本合同工程项目的施工任务。项目经理部作为公司的派出机构，全权负责在施工现场按合同要求组织工程的实施，按期优质完成本工程任务，对业主负责。项目经理部设“七部一室”，下设上香丽高速补洛大桥专业施工队。人工挖孔桩施工管理组织机构图项目经理：白新华施工负责人：技术负责人：金宪应施工组组长： 质检、安全组组长： 材料、设备组组长： 人工挖孔桩施工队伍3.2.2、管理及施工、技术检测人员安排上补洛大桥梁人员安排如下： 施工负责人施工技术总负责人质量负责人试验负责人安全工程师
43、机械设备负责人材料保障负责人协调保障负责人后勤保障负责人技术实施质量检测测量控制试验检测现场主要施工员管理、实施、控制、检测人员共计 人3.3施工工艺流程图施 工 准 备基桩轴线控制点及水准基点设置场地清障/平整/加固桩机进场/安装/调试回灌冲洗液稳定孔内水头/泥浆性能调整对护筒进行中间验收制 作 钢 筋 笼桩 位 放 样埋 设 护 筒桩机对位调平冲、钻 进 成 孔第一次清孔测沉渣终 孔 验 收吊放钢筋笼/焊接灌注混凝土/初灌量控制/剪球/灌注/拔管/至施工的桩顶第二次清孔测沉渣卸导管料斗/起护筒转移桩机至下一个桩位钢筋笼质量检查制 作 泥 浆设置泥浆池/沉淀池/循环槽/安装泥浆泵制作混凝土试
44、块/养护拌 制 混 凝 土水泥/砂/石等材料进场，送检及配合比试验钢筋进场/材料及试件送检安放导管及球塞对持力层岩土验样测定混凝土坍落度测定各段混凝土顶面高度及控制拔管高度3.4施工工艺及工序3.4.1 桩基测量定位 场地平整完成后由测量人员根据设计图纸精确放样孔桩中心桩位,并设置护桩以便施工过程中检查钻孔中心，护桩用水泥砂浆固定。并现场做好各孔桩位置标示牌，详细记录各孔编号及需冲孔深度。3.4.2 泥浆池设置在靠近线路沿小河沟下游侧施工红线内挖6米长，5米宽，2米深的泥浆池，选择和备足良好的造浆粘土或膨润土，造浆量为2倍桩的混凝土体积，泥浆比重可根据钻进不同地层及时进行调整。3.4.3 埋设
45、护筒护筒采用8mm厚的钢板加工制成，护筒内径比桩径大20cm，护筒上部开设一个溢浆孔；校核桩位中心后，在护筒四周用黏土分层回填夯实，护筒采用人工挖埋及锤击方法埋设，护筒上部高出地下水位或孔外最高水位1.5米以上，并高出地面0.3米。护筒埋置深度符合下列规定：黏性土不小于1m，砂类土不小于2m。当表层土松软时将护筒埋置到较坚硬密实的土层中至少0.5m。护筒顶面中心与设计桩位偏差不大于3cm，倾斜度不大于1%。3.4.4、钻机调试、就位钻机就位前由专业人员对钻机进接电检查并调试，调试完成后进行钻机就位。安装钻机时用枕木、木板把钻机底部垫平，保持钻机稳定，不得产生位移和沉陷，钻头在护筒中心偏差不得大于30mm。钻机就位完成后由测量人员对钻头中心进行检查。3.4.5钻孔施工1)泥浆制备： 冲击成孔使用高比重、高粘度泥浆护壁和浮渣，也可直接向孔内投入粘土或泥球护壁。泥浆性能主要参数为：项目比重粘度P